Smoke-consumer for locomotives.



E. J: MOGROUARY & M. S. VAN DRESAR. SMOKE CONSUMER FOR LOCOMOTIVES.APPLICATION FILED SBPT.14,1910.

1,128,476. Patented Feb. 16, 1915.

2 SHEETS-SHEET 1.

jii j Va d1 waif/M4" THE NORRIS PETERS CO. PHom-LITHQ. WASHING MIN, 0. l

E. J. MGGROUARY & M. S. VAN DRESAR.

SMOKE CONSUMER FOB. LOCOMOTIVES.

APPLICATION FILED SEPT. 14, 1910.

Patented Feb. 16, 1915.

2 SHEETS-SEEK 2.

THE NORRIS PETERS 50.. PHOTO-LITHO., WASHING MN, 0. C

UNITED STATES PATENT OFFICE.

EDWARD J. MCGROUABY AND MILFORD S. VAN DRESAR, OF ST. PAUL, MINNESOTA;SAID VAN DRESAR ASSIGNOR TO SAID MOGROUARY.

SMOKE-CONSUMER FOR LOCOMOTIVES.

Application filed September 14, 1910.

To aid whom it may concern:

Be it known that we, EDWARD J. Mo- GROUARY and MILFORD S. VAN DRESAR,citizens of the United States, residing at St. Paul, in, the county ofRamsey and State of Minnesota, have invented certain new and usefulImprovements in Smoke-Consumers for Locomotives, of which the followingis a specification. I

()ur invention relates to improvements in smoke consumers forlocomotives, its object being particularly to provide means for causinga more complete consumption of the products of combustion than isobtalned 1n the ordinary locomotive.

To this end our invention consists in the features of construction,combination and arrangement of parts hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure1 is a perspective conventional view of a locomotive partly broken awaycontaining our improved features of invention; Fig. 2 is a longitudinalsection through the smoke stack; Fig. 3 is a similar section through thefire box; and Fig. 4 is a section on line mw of F 1g. 2.

In the drawings A represents a locomotive, B the fire box, and 3 theboiler tubes. A wall 1 extends from the front plate 5 of the boilerdownwardly and forwardly toward the front end of the locomotive, beingformed at its free end with a deflector plate 5 and an upwardlyextending partition wall 6 of openwork material.

7 represents a nozzle stand through which the exhaust steam passes fromthe cylinders to a petticoat pipe arranged above the same, the pipe 8being arranged in alinement with an upper pipe section 9 opening intothe smoke stack 10.

In carrying out our invention we surround the pipe 9 with a hood l1interspaced from the pipe 5 and of somewhat larger diameter than thepipe 8, the lower edge 12 of the hood being outwardly flared. The upperend of the space between the pipe 9 and hood ll communicates by means ofpipes 13, upon opposite sides, with selected ones of the boiler tubes 8.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Serial No. 581,969.

In order to produce a forced draft downwardly through the pipes 13 weprovide a blast nozzle 1% directed downwardly into the upper end of thepipes 13 and connected by a pipe 15 with the rear portion 16 of theboiler, the pipe 15 being provided with a controlling valve 17.

In operation, the products of combustion from the fire box will passthrough the boiler tubes and underneath the wall 4 and plate 5 andthrough the screen 6, thence passing through the pipe 9 to the smokestack. In the usual manner the exhaust steam from the cylinders passthrough the pipes 8 and 9 creating a forced draft. As the products ofcombustion pass toward the pipe 9 a very material portion will pass intothe space between the pipe 9 and hood 11 and from thence through thepipes 13 and connected boiler tubes back to the fire box. In passingthrough the fire. box this second time a large portion of the productsof com bustion which were not at first consumed will be consumed, thusmaterially lessening the amount of smoke or unconsumed products ofcombustion ejected through the smoke stack. Where desired, as where theengine is at rest and no steam being ejected from the cylinders throughthe conduit 7, the valve 17 may be opened to eject steam through theblowers 14: into the pipes 13, making a forced draft through said pipesto assist in carrying the products of combustion therethrough back tothe fire box. It will be understood that our invention is employed incooperation with the ordinary forced draft appliances of a locomotive.

WVe claim as our invention:

In combination with a locomotive tubular boiler, a fire boX and smokestack, a downwardly directed plate located in front of the boiler andextending downwardly from the front boiler head, then forwardly inspaced relation with the bottom of the locomotive smoke box, the exhaustnozzle of the locomotive projecting through said plate, a hood arrangedbelow the smoke stack, a pipe section within said hood and coaxialtherewith, said pipe section at its upper end being connected with thehood and its lower end spaced to constitute an open bottomed hood andpipe, pipes leading from the uptures in presence of two Witnesses.

per portion of the space between the hood EDWARD J. MGGROUARY. and innerpipe section to selected ones of the MILFORD VAN boiler 'tubes and blastnoziles dischaiging Witnessesz into the mouths of the last named pipesat H. S. JOHNSON, t e u per en o sa d h od- SM H- Coplea of this patentmay be obtained for five cents each, by addressing the Commissioner ofPatent,

' Wash ngton, D.- 9-" In testimony whereof We affix our signa-.

